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MSP05

Sigma-Aldrich

Membrane Scaffold Protein 1E1D1 D73C

recombinant, expressed in E. coli, Cysteine substituted at position 73

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About This Item

Code UNSPSC :
12352200
Nomenclature NACRES :
NA.26

Produit recombinant

expressed in E. coli

Pureté

≥90% (SDS-GE)

Forme

buffered aqueous solution

Conditions d'expédition

ambient

Température de stockage

−20°C

Description générale

Nanodisc technology is an approach to render membrane proteins soluble in aqueous solutions in a native-like bilayer environment, where the membrane proteins remain stable and active. The Nanodisc concept is derived from high density lipoprotein (HDL) particles and their primary protein component, apolipoprotein. The Nanodisc is a non-covalent structure of phospholipid bilayer and membrane scaffold protein (MSP), a genetically engineered protein, which mimics the function of Apolipoprotein A-1 (ApoA-1).

The first MSP, MSP1, was engineered with its sequence based on the sequence of A-1, but without the globular N-terminal domain of native A-1. The MSP1E1D1 D73C variant of MSP1 differs from MSP1 in the following facets:
  • It deletes the first 11 amino acids in the Helix 1 portion (referred to as “H0.5” in the accompanying figure) of the original MSP1 sequence (which is known separately as MSP1D1).
  • It repeats the Helix 4 portion (H4) of the original MSP1 sequence between the parent Helix 4 (H4) and Helix 5 (H5) segments of MSP1D1.
  • It replaces one aspartic acid residue (D) with a cysteine (C) at position 73 of the original native A-1 sequence, located within the Helix 2 segment (H2).

Application

For guidelines on the use of this and other MSP′s to prepare Nanodiscs, please visit our Protocols for Membrane Scaffold Proteins and Nanodisc Formation page.

Informations légales

Nanodisc technology, and many of its uses, are covered by the following patents held by the University of Illinois.
  • 7,691,414 Membrane scaffold proteins
  • 7,662,410 Membrane scaffold proteins and embedded membrane proteins
  • 7,622,437 Tissue factor compositions and methods
  • 7,592,008 Membrane scaffold proteins
  • 7,575,763 Membrane scaffold proteins and tethered membrane proteins
  • 7,083,958 Membrane scaffold proteins
  • 7,048,949 Membrane scaffold proteins

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Protocoles

Membrane Scaffold Proteins: Nanodisc Formation

Nanodisc technology aids membrane protein solubilization, overcoming associated challenges in diverse protein classes.

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